Type-writer.



0. DEL. RICE. TYPE WRITER.

APPLICATION FILED APR. 14,1904.

NO MODEL.

WITNESSES:

PATENTED OCT. 11, 1904.

2 SHEETS-SHBET l- INVENTOR fluke 48K 21 @(LL BY [31AM ATTORNEYS No. 772,057. PATENTED 007. 11, 1904 0 DE L RICE TYPE WRITER.

APPLICATION FILED APR 14 1904 2 SHEETS-SHEET 2.

N0 MODEL.

ATTORNEYS :1 INVENTOR a/Jm &{61

w l..||Y

nf m UNITED STATES Patented October 11, 1904.

PATENT ()FFICE.

CHARLES DE LOS RICE, OF HARTFORD, CONNECTICUT, ASSIGNOR TO UNDERIVOOD TYPEIVRITER COMPANY, OF NEW YORK, N. Y., A

CORPORATION NEIV JERSEY.

TYPE-WRITER.

SPECIFICATION forming part of Letters Patent No. 772,057, dated October 11, 1904.

Application filed April 14,1904. Serial No- 203,l32- (No model.)

To all whmn 2125 may concern:

Be it known that I, CHARLES De Los RICE, a citizen of the United States, residing in the city of Hartford, county of Hartforch State of Connecticut, have invented certain new and useful Improvements in Type-Friters, of which the following is a specification.

My invention relates to type-writers, and more particularly to the carriages thereof. and,has for its object to provide a simple and efficient construction for supporting extrawide carriages.

Other objects of my invention will appear from the detailed description, and the features of novelty will be pointed out in the appended claims.

In the accompanying drawings, which illustrate a typical form of my invention, Figure 1 is a sectional view on line 1 1 of Fig. 2 of a portion of a type-writer with my invention applied thereto. Fig. 2 is a cross-section on line 2 2 of Fig. 1. Fig. 3is a View looking in the direction of the arrow 3 in Fig. 2 of one of the roller-bearings and its support. Fig. 4 is a fragmentary cross-section of the rear portion of the type-writer. Fig. 5 is a rear view of the parts illustrated in Fig. 4, and Fig. 6 is a diagrammatic cross-section of the type-writer.

A represents the frame of the machine, provided at the front with tracks A and A extending entirely across the machine.

B is the usual carriage, having the platen B The said platen is capable of being shifted into upper and lower case printing positions and is hung in arms B, fulerumed at B upon the frame of the machine for this purpose. The carriage is provided at its front portion with a rail B, upon which rail at spaced intervals are cast or otherwise secured lugs B Mounted in the said lugs B are bushings C, provided with heads C, the purpose of which will be more fully explained hereinafter. The rear of the carriage is supported and adapted to travel upon the rod A secured to lugs A, forming part of the frame of the machine.

D is a screw-threaded bolt which is screwed into said bushing C eccentrically. Upon each of said bolts D are mounted cones E and E, forming together a Vgroove.

F is a bearing-ring provided with an inner V-groove, and Cr represents balls arranged to travel in said grooves to form aball-bcaring for said ring or roller.

H is the shift-rail for shifting the carriage into its upper and lower case printing positions, and I is the usual shift-frame fulcrunied at 1 upon the frame of the machine.

B is a roller secured to the platen in any suitable manner and arranged to travel upon said shift-rail H.

In the particular use for which my invention is intended the shift-rail H is of unusual length, and there is therefore danger of sagging. To overcome this disadvantage, I provide a stiffening-frame .I, attached to the shiftrail H by bent-over lugs or ears J, the said frame J being preferably struck from one piece of metal.

To secure an exact alinement of all of the rollers F without the necessity of very careful and exact drilling of the holes for the screwbolts D, I provide the bushings C, before mentioned, into which bushings the holes for the screw-bolt D are drilled eccentrically. If on assembling the various parts of the machine it is found that the rollers F are not in perfect alinement, it is only necessary to turn the bushings C until such perfect alinement is secured, the head C having flattened sides, Fig. 3, for affording a grip for a wrench or other implement for turning said bushings C. To prevent the adjusting of the rollers F from disarranging the other mechanism of the machine, which disarrangement might take place if all the rollers F were mounted adjustably, I may mount one of the rollers, preferably one of those at the extreme end of the rail, directly upon the lug B that is, by doing away in this instance with the adjustable bushing and screwing the bolt D directly into the lug B The said roller, mounted in this fashion, will serve as a guide for alining the other rollers. In the structure shown in Fig. 2 the bolt D, in addition to supporting the rollers F, serves also to secure the bushing C in place and also securely holds the cones E and E in position. The head of the said bolt presses the said cones toward the frame, and the screwing of said bolt into the bushing draws the head of the latter against the frame, this locking the parts just mentioned in position without the aid of any other fastening devices.

In operation if the carriage is moved in either direction the rollers F will travel along the track A until the said carriage has reached either one of its extreme positions, one of which is illustrated in Fig. 1. In this position two of the rollers have left the said track A and two of them still remain upon it-that is, the right-hand one in Fig. 1 now acts as a fulcrum, the overhang of the carriage throwing the other roller upward against the track A which roller will therefore act as -a stop and will effectually prevent the carriage from tipping.

- I have shown four rollers in the illustration of my invention, although I wish it distinctly understood that only three are necessary as long as they are so spaced that two of them will always engage the tracks A A as shown in Fig. 1in other words, one acting as a fulcrum and the other acting as a stop. Also I wish it to be understood that more than four rollers may be used, if found advisable.-

The shift-frame I may be attached to the shift-rail H by lugs or ears similar to the lugs or ears J of the stiffening-frame J.

Various modifications of my invention may be made without departing from the nature thereof I claim and desire to secure by Letters Patent 1. In a type-writer or like machine, the combination with a horizontally-movable carriage,

provided with a series of rollers mounted to turn about horizontal axes, of a frame having superposed tracks between which said rollers are adapted to travel, the distance between the end rollers being greater than the length of said tracks.

2. In a type-writer or like machine, the combination with two members, viz., a stationary frame and a horizontally-movable carriage, of

a guiding device comprising superposed tracks carried by one of said members and rollers carried by the other member and arranged between the said tracks, said rollers being mounted to turn about horizontal axes, that portion of the guiding device which is mounted upon the carriage being of greater length than the portion of the guiding device carried by the frame.

3. In a type-writer or like machine, the combination with two members, viz., a stationary frame and a horizontally-movable carriage, of a guiding device comprising superposed tracks carried by one of said members and rollers carried by the other member and arranged between the said tracks, supports about which said rollers are mounted to turn, and adjustable bushings mounted to turn in roller-carrying member about horizontal axes and each provided with a flattened head arranged to engage said member and with an eccentric screwthreaded aperture arranged to receive a corresponding screw on sundry of said supports.

4. In a type-writer or like machine, the combination with the frame and a transverselymovable carriage having a shifting platen portion, of a movable shift-rail forming a track for said platen portion, and a downwardlyprojecting stiffening frame detachably secured to said rail and extending longitudinally thereof.

5. In a type-writer or like machine, the combination with the frame and the transverselymovable carriage having a shifting platen portion, of a shift-rail forming a track for said platen portion, supports movably carried by the frame and connected with said shift-rail at a distance from its ends and a stiffeningframe detachably secured to said rail both between said supports and exteriorly thereof.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

CHARLES DE LOS RICE.

Vitnesses:

WV. M. DYORKMAN, OSCAR C. KAoLE. 

